Japanese-Argentine model Jessica Michibata, girlfriend of McLaren Formula One driver Jenson Button of Britain, arrives at the track ahead of the first practice session of the Singapore F1 Grand Prix at the Marina Bay street circuit in Singapore September 20, 2013. (Photo: Reuters)

McLaren Mercedes driver Jenson Button of Britain, is accompanied by his girlfriend Jessica Michibata, arrives for the first practice session for the Singapore Formula One Grand Prix on the Marina Bay City Circuit in Singapore, Friday, Sept. 20, 2013. (Photo: AP)

Japanese-Argentine model Jessica Michibata, girlfriend of McLaren Formula One driver Jenson Button of Britain, arrives at the track ahead of the first practice session of the Singapore F1 Grand Prix at the Marina Bay street circuit in Singapore September 20, 2013. (Photo: Reuters)

Japanese model Jessica Michibata, girlfriend of McLaren Formula One driver Jenson Button of Britain, talks to a guest as she arrives at the paddock ahead of the Singapore F1 Grand Prix September 19, 2013. (Photo: Reuters)

Jessica Michibata

Japanese model Jessica Michibata, girlfriend of McLaren Formula One driver Jenson Button of Britain, talks to a guest as she arrives at the paddock ahead of the Singapore F1 Grand Prix September 19, 2013. (Photo: Reuters)